Improvement in hasp-locks



UNITED STATES PATENT QFFIGE.

IMPROVEMENT IN HASP-LOCKS, &c.

Specification forming part of Letters Patent No. 153,354, dated July 21, 1874 application filed April 25, 1574.

To all whom it may concern:

Be it known that I, CARL F. LEOPOLD, of the city and county of Philadelphia, and the State of Pennsylvania, have invented a new and useful Improvement in Locks; and I do hereby declare the following to be a clear and exact description of the nature thereof, sufficient to enable others skilled in the art to which my invention appertains to fully understand, make, and use the same, reference being had to the accompanying drawings making part of this specification, in which- Figure 1 is a face view of the device illustrating my invention. Figs. 2 and 3 are in terior views thereof. Fig. 4 is a transverse section inline 00w, Fig.2. Fig. 5 is a side view thereof. Fig. 6 is a top view of a detached part. Fig. 7 is ahorizontal section in line y y, Fig. 2.

Similar letters of reference indicate corresponding parts in the several figures.

This invention consists in a rotary disk, carrying a lug with an operating-eye, in connection with a locking-bolt formed with a shoulder and jointed to one of the fixed plates of the lock-casing, and with the tumblers, which are also jointed to said fixed plates,'the casing having a slot in its side for the passage of the key during the unlocking operation. It also consists of the locking-bolt and the tumblers jointed to one of the fixed plates of the casin g, in connection with a locking-dog jointed to a disk which rotates within the casing and operates the bolt. It also consists in an eye on the rotary disk for the reception of the key, and the tumblers arranged across the inner end of said eye. It also consists in the combination of parts to form an improvement in rotary locks. It finally consists in a guard for covering a slot in the casing when the bolt is locked.

Referring to the drawings, A represents the back plate, and B the face-plate of the casin g of a rotary lock. On the inner side of one of the plates there is located a disk or annulus, G, which has a rotary motion, and is operated by a key engaging with an eye or lug, D, formed with or secured to said disk 0, a slot, (1-, being formed longitudinally in the side of the casing of the lock, to permit the passage of the key during the unlocking operation,

said slot being continuous of the opening a, in which the key is first introduced. G represents the bolt, whose axial post is secured to one of the plates A of the casing, and said bolt has its locking end a extended laterally from the adjacent portion or main length, and said bolt is extended beyond its axis to form aheel, b. One or more tumblers, H, are mounted on a post, J, which is fixed to one of the plates of the casing, and the tumblers project in a direction toward the eye or lug D, so as to be operated by the key inserted therein. Posts or walls K K are formed with or on the rotary disk 0, and they project from the face of said disk at points opposite to each other, so that one post is outside of the tumblers H and the other inside thereof, or the two posts circumscribe the'tumblers. L represents a dog,

which is jointed at one end to the rotary disk;

and its other end is shouldered or notched, and adapted to engage with the heel l) of the bolt G. The under face of the heel of the bolt is formed with a shoulder, M, and with the same engages a lug or projection, N, which is connected to or formed with the rotary disk at a point beneath that occupied by the heel of the bolt, the bearing-face of the lug or projection N extending in a line diagonal or tangial. the back plate A, for the passage of the attaching-staple, and a wall, Q, of shape cor responding to that of the opening P, projects inwardly from the plate A, so as to form a passage continuous of the opening P, the entire passage being shown at R. The lockin g end a of the bolt G projects through one side of the wall Q, and is thus guided and braced thereby, and said end extends across the passage It, so as to engage with the staple which projects into the said passage. The disk 0 will be cut away at points relatively to the wall Q, posts H and J, in order to permit the rotation of the disk without the interference of or interfering with said parts. Suitable springs will be applied to the bolt, dog, and tumblers, in order to cause the proper action thereof.

The operation is as follows In order to unlock the bolt, the key is inserted in the eye or lug D, and the tumblers are thus moved in= wardly, so that when the key is moved in the An opening, P, is made in.

direction of the arrow, the shoulders (I d of the tumblers will come in between the posts K K. The rotation of the disk moves the dog L clear of the heel of the bolt G, and the lug N, following the motion of the disk, and engaging with the heel, as stated, draws the heel of the bolt downwardly, and thus throws out the locking end of the bolt, whereby the latter is unlocked.

Should an improper key be used, or attempts be made by instruments to operate the turnblers, if the latter are forced in too far, the shoulders (I engage with the innerpost K, and if not forced in sufficiently, the shoulders (1 remain engaged with the outer post K, andin either case the disk cannot be rotated, whereby the bolt remains locked and secure.

A spring may be arranged with the disk or other parts of the lock, to cause the automatic return of the disk, and the consequentlocking of the bolt 5 butif the key is to be used, it must be moved back, or in the direction opposite that first stated, so as to return the disk (3 to its normal position. In this movement, the lug N is relieved of pressure on the heel'of the bolt, and the latter closes by action of its spring; the dog L is advanced toward the heel of the bolt and locks therewith; the posts K K return with the disk, and, passing the tumblers, the latter engage with one of the posts, and thus the bolt is locked, the tumblers preventing the rotation of the disk, and the dogL and lug N being thus rendered inoperative. When the bolt is locked, the slot a in the casing will be covered by a guard plate or wall, a, formed with the eye D or the disk 0, in juxtaposition to said eye.

The lock may be attached to a hasp or used as an ordinary padlock 5 but in the former case it is advisable that the plate or cap of the easing should be cast with the hasp.

In order to apply the same to an eye or staple of the device to be locked, it is only necessary to have the bolt thrown back, insert the eye or staple in the passage R, and then close the bolt, which engages with the eye or staple, thus locking the same, and the work is accomplished.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. The rotary disk 0, formed with lug N and eye D, in combination with the lockingbolt Gr, formed with shoulder M, and jointed to one of the fixed plates of the casing, the tumblers H, also jointed to one of the fixed plates of the casin g, and the casing with the longitudinal slot a, substantially as and ior the purpose set forth.

2. Therotary disk 0, carrying the dog L, in connection with the locking-bolt and tumblers jointed to one of the fixed plates of the casing, substantially as and for the purpose set forth.

3. The eye D,- fixed to the rotary disk G, in combination with the tumblers H, substantially as and for the purpose set forth.

4. The disk 0, formed with lug N and eye D, and carrying the dog L, in combination with the bolt G, tumbler H, posts K, and wall Q, forming together an improvement in rotary looks, as stated.

5. The guard or wall 0, in connection with the rotary disk, and arranged in relation to the slot at of the cap, substantially as and for the purpose set forth.

Witnesses: CARL F. LEOPOLD.

JOHN A. WIEDERSHEIM, G. S. HETHERINGTON. 

